Gymnocalycium kuehhasii Gymnocalycium affine Gymnocalycium alenae Gymnocalycium campestre Gymnocalycium incurvatispinum Gymnocalycium kuehhasii subsp. corneuspinum Gymnocalycium kuehhasii subsp. incurvatispinum Gymnocalycium kuehhasii subsp. corneispinum
World Flora Online, accessed June 20, 2024